Register Transponder 
 You will be guided through a few screens to enable you to register the transponder that you have purchased and setup a Metro ExpressLanes account. Please have the transponder that you purchased handy so that you may quickly complete the registration process.
 Enter the 10 digit number on the front of the transponder, e.g. 0750121023.
 Enter the alpha-numeric code located on the transponder mounting strips. Please note the letters are CASE Sensitive.